Finding the Fourth Proportional to 1,123.60, 1,545.96 and 1,097.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.60 : 1,545.96 = 1,097.68 : x
2. Step 2: Convert to fraction form
   1,123.60/1,545.96 = 1,097.68/x
3. Step 3: Cross multiply
   1,123.60x = 1,545.96 × 1,097.68
4. Step 4: Simplify right side
   1,123.60x = 1,696,969.37
5. Step 5: Solve for x
   x = 1,696,969.37/1,123.60
6. Step 6: Final answer
   x = 1,510.30